SPS

Acropora millepora

Also sold as Milli

Type: SPS
Care level: Intermediate to advanced (sources disagree; called the easiest Acropora by some)
Light: 200 to 400 PAR (high)
Flow: High
With neighbours: Peaceful

Safety: handling acropora millepora

Low hazard

How do you care for acropora millepora?

Placement

Upper third

Flow

Strong, turbulent, random

Feeding

Optional

Growth

Moderate

Water quality

Browning suggests too little light, whitening too much typical, check

How much light does it need?

Sources put it at about 200 to 400 PAR, measured where the coral sits. Start a new coral at the low end and raise it over weeks.

200 to 300 for the first month then up to 300 to 400; 250 to 350. typical, check

Which neighbours are safe?

Low

As Acropora

Fish

Fish known to nip this group of corals, or small enough to be caught by it.

Avoid together (1)

Harlequin filefishHarlequin filefish feeds on Acropora and will strip them.

Take care (6)

Yellow clown gobyYellow clown goby may nip Acropora, more so when underfed.
Lawnmower blennyLawnmower blenny may nip Acropora, more so when underfed.
Tailspot blennyTailspot blenny may nip Acropora, more so when underfed.
Coral beautyCoral beauty may nip Acropora, more so when underfed.
Flame angelfishFlame angelfish may nip Acropora, more so when underfed.
Moorish idolMoorish idol may nip Acropora, more so when underfed.

Other corals

Corals that can harm this one if placed too close.

Take care (12)

Toadstool leatherToadstool leather releases chemicals that can harm SPS such as the acropora millepora; run activated carbon.
Finger leatherFinger leather releases chemicals that can harm SPS such as the acropora millepora; run activated carbon.
Hammer coralHammer coral stings neighbours up to about 15 cm away at night; keep the acropora millepora out of reach.
Frogspawn coralFrogspawn coral stings neighbours; keep the acropora millepora out of reach.
Torch coralTorch coral stings neighbours; keep the acropora millepora out of reach.
GalaxeaGalaxea stings neighbours up to about 15 cm away at night; keep the acropora millepora out of reach.
Horn coralHorn coral stings neighbours; keep the acropora millepora out of reach.
Fire coral (not Acropora millepora)Fire coral (not Acropora millepora) stings neighbours; keep the acropora millepora out of reach.
Bubble tip anemoneBubble tip anemone stings neighbours; keep the acropora millepora out of reach.
Mini maxiMini maxi stings neighbours; keep the acropora millepora out of reach.
Carpet anemones (Haddon's, giant)Carpet anemones (Haddon's, giant) stings neighbours; keep the acropora millepora out of reach.
Ritteri anemoneRitteri anemone stings neighbours; keep the acropora millepora out of reach.

Invertebrates

Invertebrates that may nip corals when hungry.

Take care (3)

Emerald crabSome emerald crabs nip corals when hungry.
Peppermint shrimpSome peppermint shrimps nip corals when hungry.
Camel shrimpSome camel shrimps nip corals when hungry.

These checks follow the reasons fish and invertebrates clash: same species or genus, similar shape, mouth size, temperament, food, burrows, tank size and the order they are added. Individual animals differ; every source agrees on that.

Pests, dips and quarantine

As Acropora

No dip reliably kills pest eggs, so a dip lowers the risk rather than removing it. Inspect new frags with a torch after lights out, including the underside and the plug.

Where sources disagree

Where sources disagree
Topic	What sources say	Our reading
Difficulty	Intermediate to advanced (sources disagree; called the easiest Acropora by some)	Sources differ here, so we give the range and the reasons rather than one number.

Sources

Gensou Acropora millepora guideRead 21 October 2026, search summary only.
Top Shelf Aquatics A. millepora listing and fire coral noteRead 21 October 2026, search summary only.
Fragbox Acropora milleporaRead 21 October 2026, search summary only.

Last checked 21 October 2026. How we check

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